https://bugs.llvm.org/show_bug.cgi?id=48618
Bug ID: 48618
Summary: [CMake] libcxx_tsan_x86_64:
projects/compiler-rt/lib/tsan/libcxx_tsan_x86_64-bins/
cxx/__config_site does not respect LIBCXX_* variables
Product: compiler-rt
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Keywords: build-problem
Severity: enhancement
Priority: P
Component: tsan
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
(With https://reviews.llvm.org/D93848 , `ninja tsan` will build on musl)
cmake -GNinja -Hllvm -BRelease -DCMAKE_BUILD_TYPE=Release
-DLLVM_ENABLE_PROJECTS='clang;lld;libunwind;compiler-rt;libcxx;libcxxabi'
-DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-alpine-linux-musl
-DLLVM_TARGETS_TO_BUILD=X86 -DLIBCXX_HAS_MUSL_LIBC=On -DLLVM_APPEND_VC_REV=OFF
Note that
Release/projects/compiler-rt/lib/tsan/libcxx_tsan_x86_64-bins/cxx/__config_site
does not define __LIBCPP_HAS_MUSL_LIBC
As a result, `ninja libcxx_tsan_x86_64` will fail to build (dependency of
`ninja check-tsan).
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